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66353045 = 5112352453
BaseRepresentation
bin1111110100011…
…1011110010101
311121212002021012
43331013132111
5113441244140
610330102005
71433664053
oct375073625
9147762235
1066353045
1134500030
121a27a905
1310992875
148b531d3
155c5a265
hex3f47795

66353045 has 16 divisors (see below), whose sum is σ = 90640512. Its totient is φ = 46157760.

The previous prime is 66353039. The next prime is 66353071. The reversal of 66353045 is 54035366.

It is not a de Polignac number, because 66353045 - 28 = 66352789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24962 + ... + 27491.

It is an arithmetic number, because the mean of its divisors is an integer number (5665032).

Almost surely, 266353045 is an apocalyptic number.

It is an amenable number.

66353045 is a deficient number, since it is larger than the sum of its proper divisors (24287467).

66353045 is a wasteful number, since it uses less digits than its factorization.

66353045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52492.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 66353045 is about 8145.7378425776. The cubic root of 66353045 is about 404.8432965876.

The spelling of 66353045 in words is "sixty-six million, three hundred fifty-three thousand, forty-five".

Divisors: 1 5 11 23 55 115 253 1265 52453 262265 576983 1206419 2884915 6032095 13270609 66353045